联系我们 Contact Us
电 话:0371-69126319
邮 箱:hnjmbz@126.com
地 址:河南省郑州市金水区三全路89号
郑州纸箱厂纸质就过脆,压楞时就容易出现破裂
编辑:河南金马包装材料有限公司 时间:2015-3-12
郑州纸箱厂纸质就过脆,压楞时就容易出现破裂现象,且耐折度也差。
郑州纸箱厂含水率测试 含水率是指原纸或纸板中水分的含量◦♠♣含水率对纸箱箱体强度,有着很大的影响作用,测定原纸或纸箱的含水率,比较常用的检测方法是采用烘干法, ●•۰即从不同部位分别取样若干块,用天平称取约50g的试样,并将其撕成碎片后放入烘箱内,烘干至恒重,即可求出其含水率。 郑州纸箱厂含水率=(试样原来的重量-试样烘干的重量)÷试样原来的重量 瓦楞纸具有一定的耐压、抗张,抗戳穿和耐折性能, ❤若水分含量过高的话,纸质就显得柔软,挺度差,压楞和粘合质量也差。郑州纸箱厂如果,水分明显低于下限标准值时,纸质就过脆,♠♣压楞时就容易出现破裂现象,且耐折度也差。
Is too brittle, zhengzhou cardboard-box factory paper stare blankly is easy to appear rupture phenomenon, and folding degree is quite poor. Zhengzhou cardboard-box factory moisture content test Moisture content is refers to the moisture content in the base paper or cardboard ◦ ♠ ♣ moisture content on the carton box body strength, has a great influence on function, determination of the moisture content of paper or cardboard box, more commonly used detection method is using the method of drying, low ۰, namely from different parts of the sampling number of blocks respectively, with the balance in about 50 g sample, and tore it to pieces after into the oven, drying to constant weight, you can find out the moisture content. Moisture content = zhengzhou a cardboard-box factory (the original sample weight - the weight of the sample drying) present the weight of the original sample Corrugated paper has a certain pressure, tensile, puncture and folding resistance, ❤ if moisture content is too high, paper is soft, poor stiffness, stare blankly and bonding quality is poor. If zhengzhou a cardboard-box factory, moisture significantly lower than the lower limit values, the paper is too fragile, ♠ ♣ pressure stare blankly is easy to appear rupture phenomenon, and folding degree is quite poor.